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- Environmental monitoring consisted of total and respirable airborne particulate metal levels, average and maximum noise levels. 定点作业环境测定包含总粉尘与可呼吸性粉尘采样两部份，以及平均噪音与最高噪音测定。
- maximum noise level 最大噪声级
- Structure of very low noise level. 低噪音结构。
- Noise level shall comply with the EU guidelines. 噪音级别应符合欧盟的指导方针。
- The noise level of air supply unit should be marked on the drawing. 机组要有噪声要求。
- Airflow system maximizes air volume at minimum noise level. 空气动力系统使加热器在最大出风量时将噪音降到最低。
- The quality of urban living has been damaged by excessive noise levels. 城市生活的质量已被过度的噪音所破坏。
- After these treatments, outside noise level of the bus with maximum acce_leration declines from 91.5 dB(A) to lower than 86 dB(A), which meets the "Permitted Noise Level of Motor Vehicle" defined by the "GB 1495_79" national standard. 改进后GZ6 92 1型大客车最大加速度时的车外噪声由 91.;5dB(A )降到 86dB(A)以下;达到国标GB 1495- 75“机动车允许噪声”的规定
- Maximum mechanical noise level was measured at 79.6 dBA.After classifying noise sources as non-mechanical or mechanical, we established a list of objectives and used 13 approaches to achieve them. 经盘点、分析、测量噪音来源、产生原因、噪音量、及使用特性要因图后，发现病室内之机械性噪音值最高达79.;6分贝，经确立了噪音干扰问题及设立改善目标，并藉由13项改善措施，期望能降低病室音量。
- Noise margin refers to the maximum noise voltage that can be added to the generated signal in a digital circuit before an undesirable change is caused in the circuit output. 噪声极限就是指可以加在数字电路的正常信号上，而又不对正常输出造成危害的最大噪声。
- This has first proved that the maximum noise is mainly caused by the local vibration of acoustic generating body in the process of revolute cutting. 这一点首次证明了旋转锯切过程中，最大噪声是由主要发声体的局部振动引起的。
- Regulation on noise levels on board sea-going ship. 海洋船舶噪声级规定。
- Latest generation speed reducing gear pair (high efficiency, low noise level). 最新一代减速齿轮对(高效,低噪音)
- The ultimate noise levels are the same. 最终的噪音水平是一样的。
- Noise level is higher, everyday concessional working hours is shorter. 噪声级越高,天天容许工作时间越短。
- Sailors, on the other hand, were found to be exposed to up to 84 dB daily, also surpassing the maximum recommended noise levels. 另一方面，水手们每天也暴露于高达84分贝的噪音，这也超过了最大建议噪音水平。
- It is forbidden to manufacture,sell or import automobiles that emit noise beyond the limits set on noise level. 禁止制造、销售或者进口超过规定的噪声限值的汽车。
- The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band. 声发射源与接收讯号传感器间的距离以及环境噪声的电平是选择频带的主要依据。
- Feel relaxed - reduce noise level and bright lights. You may want to use soft music in the background. 放轻松一点-使周围保持安静并且点亮灯。你可以用一些柔和的音乐做背景。
- Adjust your surroundings as you would for a meditation: lighting, noise level, temperature, clothing, glasses, shoes. 调整你的环境使之有利于你的冥想;光线,噪音等级,温度,衣着,眼镜,鞋。
